Battery-plate.



G. W. BENDER.

BATTERY PLATE.

APPLIOATION IILED APR.1B,1908.

Patented Mar. 16,1909.

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INVENTOR WlT/VEJSES:

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L9 a uniform manner, without UNITED STATES PATENT OFFICE.

CLAUDE W. BENDER, OF ALTOON A, PENNSYLVANIA, ASSIGNOR OF ON E-HALF TO J. RICHARD SLOAN, OF ALTOONA, PENNSYLVANIA.

BATTERY-PLATE.

- Specification of Letters Patent.

Patented; Marsh 1 6, 1-909.

To all whom it may concern:

Be it known that I, CLAUDE W. BENDER, a citizen of the United States,'residing in the city of Altoona, county of Blair, and State of 5 Pennsylvania, have invented certain Improvements in Battery-Plates.

My improvements have for their leading purpose the production of a secondary battery plate having a structure consolidated-in drawing, tearing or crowding the metal as has been' usual in forming such surfaces, and as a consequence of which the metal has heretofore been subject to ready local attack and destruction by .5 the solution used therewith.

In ractlcing my invention the surfaces of thep ates aresub ected to successive rolling Operations in reverse directions so that the .metal is not stretched, but packed by repeated pressures producinguniform ,densit over the entire surface formed.

The characteristicfeatures of the inventhegaccompanying tion are illustrated by drawings, in which F1 ure' 1 represents a form of plate that may e produced, Fig. 2-represents a sectional view. thereof on an enlarged scale, Fig. 3 represents a sectional elevation of the dies employed, and Fig. 4 representsan elevation of the dies transverse to the view shown in a Fig. 3, a section of a plate being shownvbetween them. I v .In the form illustrated, the plate A has the bordering ribs -A'.- and the Interior ribs 5 a and a, which are oftheapproximate thickness of the original blank, and within the ,sec-, tions produced thereby are formed straight, arallel ,ribs' a" providing the plate with eeply eorrugate sectional surfaces, the elevations of such corrugated surfaces lying above and the depressions below thelevels of the border A and the ribs a and a.

The. sectoral dies B are provided. with transversely .e xten channels I) and b correspondm ,tothe nbs a and a, and the parallel, circa er ribs-b'- .coi'resplondmg to the grooves betweengthe ribs 0/; t earea of the sectional, cormgate'd surfaces to formed by-formin'g he ribs a!" corresponding to .the area of the like sectional surfaces formed by the ribs 6"- for producing the former. The

approximatel by th usual operations.

plate A and the dies B may be held and operated in any manner convenient for either passing the plate back and forward between the dies, which are thus caused to oscillate,.or by rolling the dies back andforth upon the plate, which may be held sta tionary.

The reciprocating actions (if the. curved corrugations of the dies exert pressure vertical, traveling back and forth along t e plate until the desired surface of the latter is finally formed and ren dered compact, the highest and-lowest as well as the intermediate arts of the surfaces being rendered thoroug y compact by the repeated actions with insuflicient force to disrupt the uniform relation or disturb the equa distribution of the articles of the metal. The slightly angul r character. of

the pressure in, each direction of movement is o posed to that ofthe reverse direction so t at the surface is worked and the articles are restored to theiroriginal positions e reverse movements.- The outer stratum of the metal-is crowded so as to produce weak places and irregular conditions, as in forming the plates by passing-the blanks throu h rolls always traveling in the same direc ion or having a rate of movementgreater than that not strained, tornor of the plate, or displacing themetal by other A The consolidating, refinin effect of the work to which t e outer stratum of the lead composing'these platesis. subound to prolong the period jected has been during which they can e used so as to effect great. saving in the operation of storage batteries.

Having described .mymventron, I clalmz ,1. A battery plate having an irregular surface with metal that an outer stratum composed of has been subjected to" work effecting a substantially uniform consolidation of. the

and comb datedby re- .insnfficientto disrupt the 'whole ef said surface.

and toughening particles thereof over the whole ofsaidsurfaca Y 2,."A--"batte ry plate "having! a corrugated sui'face prodiice .peated pressuiies 3. A battery plate having a surface "so that the metal of said surface isj'not 16 shaped and consolidated throughout .by disrupted.

repeated rolling pressures alternately in reverse directions at such angles as t Work the metal Without disrupting it.

4. A battery plate having a surface shaped, toughened and consolidated by rolling operations in reverse directions exerting pressures-limited in' force and direction In Witness whereof I have hereunto set my name this 13th day of April, A. D. 1908, in the presence ofthe subscrlbing witnesses.

CLAUDE WPBENDER. Witnesses:

J. R SLOAN, ANNIE K; MILLER; 

